Hissing in right AirPod Pro with noise cancellation on

Hello Catey2, 

You can reset and pair your AirPods again following these instructions: How to reset your AirPods. 

Please note that you if you continue to notice the same issue after pairing your AirPods again, we would suggest contacting Apple Support directly for more help. 

Have a great day! 

Hello Catey2,

Thanks for posting in the Apple Support Communities. We're happy to look into this with you. You might want to try doing a fit test to see if that corrects the issue you're having. This will ensure that you're getting a good seal so that your noise cancellation features work correctly.

Choose your AirPods Pro ear tips and use the Ear Tip Fit Test - Apple Support

Should this issue continue after confirming a good fit, reach out to Apple Support for additional help. You can reach them directly at Get Support.

Best regards.

Hey Catey2,

Glad it is now working for you. Please don't hesitate to let us know if you need additional assistance.

Take care.